Improvement in sawiig-machiies



` @attrs tetes atrn ffirr.

- Letters Patent No. 81,332, dated August 25., 1868.

IMPROVEMENT IN SAWING-MAGHINES.

@la Stigehule retard tu in ttes: Status tteut mrt rating im nf tigesame.

To ALL WHOM 1T MAY ooNCnRN:

Be it known that I, PETER S. BEIDLER, of South Easton, in the county ofNorthampton, and State of Pennsylvania, have invented a new and usefulImprovement in sawing-Machines; and I do hereby declare that thefollowing is a full, clear, and exact' description thereof, which willenabletothers skilled in the `art to make and use the same, referencebeing had to the accompanying drawings, forming part of thisspecification, in which- Figure l represents a side elevation,

Figure 2 represents a transverse section on the line z z ofl g. 3,' andFigure 3 represents a horizontal section on the line y y of fig. 1.

Similar'letters of reference'indicate corresponding parts;

The object of this invention is to provide a simple and eiectiveadjustable machine for sawing fclloes-of various sizes.

It consists of an arrangement of means for feeding an adjustablecircular carriage.

Also an arrangement of means for automatically stopping the feed whenthe cants have been sawed through.

Also an arrangement of means for automatically varying the feed, all aswill be more fully described -on reference to the accompanying drawings,wherein- A represents a framing, whereon are erected the housings B, forsupporting the saw-gate C, in the usua manner.

D represents a carriage, pivoted adjustably at the centre, E, providedwith a feedingrack, F, on its seg.- mental periphery, and with theadjustable head-blocks G and H.

I represents a pinion ou a vertical feeding-shaft, arranged in theswinging frame K, in the axis of which is another vertical shaft, L,provided with a friction feeding-disk, M, arranged to slide verticallyon the said shaft, by means of a forked lever, N,taking into an annulargroove in the hub of the same.

The disk communicates rotary motion to the saw-shaft L, by a spline inthe hub thereof, working in alongitudinal groove in the shaft.

The lever N is keyed to the crank-'shaft O, which latter is connected tothe hand-lever P by the connectingrod Q. I

Motion is communicated to the disk M by another disk, R,Aon the shaft S,which is actuated by abelt from the driving-shaft T.

The lever N is provided with acounterpoise, U, whereby thc disk ismaintained in any position in which it is set.

The shaft upon which is the feeding-pinion, is provided with a collar,by which it is connected o n-one side by a cord, to the weight Z1,andmon the other by an adjustable rod, e, to the crank-shaft ol, whichis connected by a vertical slotted bar, e, to the weighted hand-leverf,from the front end of which is suspended a notched bar, g. L is atrip-catch, pivoted to the frame, and provided with a vertical stud,whichisaoted -upon at the proper time by a lug on the carriage, todisengage it from the said notched plate, whereby the weighted leverfwill disengage thc'feeding-pinion from the rack. y

When it is desired to change the machine for sawing felices of diierentsizes, the carriage is adjusted on the axis a, to agree with the sizerequired, as will be well understood, andthe adjustable connecting-rod cis also changed in its connection with the arm of the oscillnting-shaftd, so as to move the swinging framewhich supports the feeding-shaft, tobring it into proper contact with the rack F on the carriage;` and thehead-blocks are also adjusted in their position on the carriage, toagree with the same, of which there maybe, preferably, two in thesaw-gate, one for sawing the outside ofthe felloes, and one for sawingthe inside thereof.

The carriage is moved back by hand,- and it may also be moved by hand tobring the saws into contact with the cant at starting, when, by swingingthe weighted lever down, and setting it'fby the trip-catch, thefeed-pinion will be brought into and maintained in gear with the rack F,and the feedinfr will be continued until the stud or lug on the carriagestrikes the trip-catch. The weight I; is designed to bc of sullcicntcapacity to hold the When it is designed to change tbe feed, theoperator makes a. movement of the hand-lever P in the proper direction,which produces the said change by action on the movable feeding-disk M,as will be readily understood.

Bymeaus of the arrangements herein described for eiecting the severalchanges, it will be observed that the operator can, with greatconvenience, govern tbe several sets of devices. I

Having thus described my invention, I claim as new, and desiret'osecureby Letters Patent- 1. The combination, lwith the adjustablecarriage D, of the adjustable feeding-apparatus, consisting of thetrip-catcb-L, pendant-bar g, weighted lever f, slotted b'ar e,connecting-rod c, rock-shaft CZ, feed-shaft and pinion I, and swingingframe K, arranged as described for the lpurpose speeied. *f*

2. The combination, with the feeding-shaft and pinion I, arranged uponthe swinging frame, of the means for changing the feed, whenarrangedvsubstantially as and for the purpose'deseribed.

' PETER s. EEIDLER.

Witnesses:

JOSEPH ZARIs, HENRY W. GYPHERS.

